Sizing for paperj



UNITED STATES PATENT OFFICE.

GEORGE. VINING, OF STOOKBRIDGE, ASSIGNOR OF ONE-FOURTH OF HIS RIGHT TO E. F. PEUK, OF GREAT BARRINGTON, MASSACHUSETTS.

SIZING FOR PAPER, 8 0.

SPECIFICATION formingpart of Letters Patent No. 223,459, dated January 13, 1850. Application filed June 24, 1879.

size is used, has long been desirel My sizing can be used in the beating-engines, or, as What paper-makers call, enginesize, and set in the usual way, or as a tubsize; and it consists in the use of caseine, either animal or vegetable, brought to the proper or required consistency by triturating with or heating a proper time in a saline solution of soda or potassa, as preferred. I use borax in any proportion required, extracting; the caseine 20 from skimmed or 'skim milk by the use of acetic or other acids, or by the use of rennet. I then wash, press, or drain all I desire, (notvery material,) and gradually add the saturated solution, or dilute, as desired, with tritu- 25 ration or heat, as aforesaid.

What I claim as my invention is-- 1. The use of caseine in sizing for paper and other substances.

2. The use of caseine, in combination with 0 borax, (soda: biboraa) substantially as described and set forth in the foregoing specification, or its equivalent. I

. GEO. VINING,'M. D.

Witnesses:

H. J DUNHAM, F. J. PRATT. 

